JPS6223920B2 - - Google Patents
Info
- Publication number
 - JPS6223920B2 JPS6223920B2 JP5878779A JP5878779A JPS6223920B2 JP S6223920 B2 JPS6223920 B2 JP S6223920B2 JP 5878779 A JP5878779 A JP 5878779A JP 5878779 A JP5878779 A JP 5878779A JP S6223920 B2 JPS6223920 B2 JP S6223920B2
 - Authority
 - JP
 - Japan
 - Prior art keywords
 - voltage
 - fire
 - scr
 - fire detector
 - detection section
 - Prior art date
 - Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
 - Expired
 
Links
- 238000001514 detection method Methods 0.000 claims description 25
 - 239000000779 smoke Substances 0.000 claims description 15
 - 230000035945 sensitivity Effects 0.000 claims description 5
 - 150000002500 ions Chemical class 0.000 description 20
 - 238000005259 measurement Methods 0.000 description 9
 - 230000001960 triggered effect Effects 0.000 description 8
 - 238000010586 diagram Methods 0.000 description 7
 - 230000005669 field effect Effects 0.000 description 2
 - 238000004519 manufacturing process Methods 0.000 description 2
 - 230000005855 radiation Effects 0.000 description 2
 - 239000004065 semiconductor Substances 0.000 description 2
 - 235000019504 cigarettes Nutrition 0.000 description 1
 - 230000007257 malfunction Effects 0.000 description 1
 - 230000002265 prevention Effects 0.000 description 1
 - 238000011084 recovery Methods 0.000 description 1
 - 229920006395 saturated elastomer Polymers 0.000 description 1
 
Landscapes
- Fire-Detection Mechanisms (AREA)
 - Fire Alarms (AREA)
 
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| JP5878779A JPS55102089A (en) | 1979-05-14 | 1979-05-14 | Fire sensor | 
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| JP5878779A JPS55102089A (en) | 1979-05-14 | 1979-05-14 | Fire sensor | 
Publications (2)
| Publication Number | Publication Date | 
|---|---|
| JPS55102089A JPS55102089A (en) | 1980-08-04 | 
| JPS6223920B2 true JPS6223920B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1987-05-26 | 
Family
ID=13094276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| JP5878779A Granted JPS55102089A (en) | 1979-05-14 | 1979-05-14 | Fire sensor | 
Country Status (1)
| Country | Link | 
|---|---|
| JP (1) | JPS55102089A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| JPS5858697A (ja) * | 1981-09-30 | 1983-04-07 | 松下電工株式会社 | 2感度型感知器 | 
| JPH0650553B2 (ja) * | 1985-07-24 | 1994-06-29 | ニッタン株式会社 | アナログ信号出力型環境情報検出器 | 
| JPS62157997A (ja) * | 1985-12-28 | 1987-07-13 | ホーチキ株式会社 | 感知装置 | 
- 
        1979
        
- 1979-05-14 JP JP5878779A patent/JPS55102089A/ja active Granted
 
 
Also Published As
| Publication number | Publication date | 
|---|---|
| JPS55102089A (en) | 1980-08-04 | 
Similar Documents
| Publication | Publication Date | Title | 
|---|---|---|
| US3603949A (en) | Fire alarm installation | |
| US4595914A (en) | Self-testing combustion products detector | |
| US4390869A (en) | Gas sensing signaling system | |
| GB698358A (en) | Improvements in fire and other alarm systems | |
| US4300099A (en) | Fire detecting system | |
| US3676680A (en) | Ionization fire alarm with insulation monitoring system | |
| US4224606A (en) | Fluid level detector test switch | |
| GB961949A (en) | Method of and system for discriminating failures | |
| US3569826A (en) | Ground fault detector apparatus including a pair of complementarily connected bridge detector means for isolated electrical power systems | |
| US3909815A (en) | Detector for fumes and combustion gases | |
| US3676877A (en) | Fire alarm system with fire zone locator using zener diode voltage monitoring | |
| JPS6223920B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| NO142464B (no) | Hoeyimpedans kretsanordning med ioniseringsroekavfoeler | |
| US4401979A (en) | Electrical controls for ionization smoke detector | |
| US2759174A (en) | Fire detector | |
| JPS6017156B2 (ja) | 火災警報装置 | |
| US4134111A (en) | Aerosol detector and method | |
| US4109240A (en) | Ionization-type fire sensing system | |
| JPS6242320B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| US4213046A (en) | Ionization fire-signal device | |
| EP0248957A1 (en) | Self-testing combustion products detector | |
| US3961224A (en) | Transient-free isolation monitor | |
| JPS5933110Y2 (ja) | 火災警報装置 | |
| ATE11346T1 (de) | Ionisations-brandmeldevorrichtung mit stoerungssignalisierung. | |
| GB2043977A (en) | Detector for detecting smoke or fire |